$ git clone -n https://src.fedoraproject.org/rpms/kf5-mailcommon.git /var/lib/mock/f31-build-91005-32039/root/chroot_tmpdir/scmroot/kf5-mailcommon
Cloning into '/var/lib/mock/f31-build-91005-32039/root/chroot_tmpdir/scmroot/kf5-mailcommon'...
$ git reset --hard 578e4d62c14364ad79bc4b1a60a8dd21e7d27130
HEAD is now at 578e4d6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild